Bottom plate reinforcing drilling water bursting prevention device
By setting a drainage port and an eccentric through-hole structure with a rotatable end cover in the bottom plate reinforcement drilling device, the problem of difficult water flow outflow is solved, and the safety and stable control of the drilling operation is achieved.
Patent Information
- Application Number
- CN202422996279.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-12-05
AI Technical Summary
During the bottom plate reinforcement drilling process, when encountering an aquifer, the gushing water makes it difficult to install the gate valve. When the water pressure is high, it is easy to cause harm to the construction workers, and it is difficult to close the gate valve.
A bottom plate reinforcement drilling and anti-water burst device is designed, which includes a sleeve embedded baffle and a rotatable end cover. By arranging a drain port and an eccentric through-hole structure on the sleeve, part of the water flow is discharged through the drain port, and the end cover is rotated to achieve alignment or misalignment of the through-hole, thereby controlling the outflow of water.
Effectively control water outflow, reduce danger to construction workers, simplify gate valve operation, and ensure the stability and safety of drilling operations.
Smart Images
Figure CN223343995U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of drilling water spray prevention devices, in particular to a bottom plate reinforced drilling water burst prevention device. Background Art
[0002] Coal mine floor reinforcement can enhance the strength of coal mine floors, reduce production accidents, optimize mining processes, and ensure safe production in coal mines. Especially for water-rich layers, drilling and grouting to fill the karst and water-conducting fissures of the floor limestone aquifer can reduce the water-rich nature of the aquifer, cut off the water supply channel, and transform the injected aquifer into an effective aquiclude, thereby ensuring safe mining activities within the mining area. Furthermore, by reinforcing the subsurface soil around the wellbore, groundwater can be prevented from draining out of the wellbore and entering the surface. Strengthening the groundwater impermeable layer can improve its anti-seepage capacity, further ensuring safe production in coal mines.
[0003] At present, the method of drilling holes for bottom plate reinforcement is generally as follows: first, a shallow hole is drilled at the target location, then a casing is inserted into the shallow hole and fixed, a sleeve coaxial with the casing is fixed at the upper end of the casing, and then the drill rod is passed through the sleeve and the casing in turn to drill into the ore layer. After the drilling is completed, the drill rod is pulled out.
[0004] During construction, when a borehole encounters an aquifer and water gushes upward along the drill pipe, the drill pipe is immediately pulled out and a gate valve is installed at the upper end of the sleeve. The borehole is sealed by closing the gate valve, or the water flow is controlled by adjusting the gate valve. However, when the water volume and water pressure in the aquifer are high, a large amount of water will gush out of the orifice and flow up the drill pipe. This water impact can make the installation of the gate valve more difficult and can easily cause harm to the drilling workers. The high water pressure also makes closing the gate valve more difficult. Utility Model Content
[0005] The utility model aims to provide a bottom plate reinforced drill hole anti-water burst device to solve the technical problem that when a large amount of water flows out of a sleeve, it is difficult to block the water flow by installing a gate valve.
[0006] In order to solve the above technical problems, the specific solution adopted by the utility model is: a bottom plate reinforcement drilling and anti-water burst device, comprising a sleeve and a sleeve fixed on the upper part of the sleeve, a drain outlet is provided on the wall of the sleeve; a baffle is embedded in the sleeve, the baffle is located above the drain outlet and a first through hole is provided on the baffle; a mounting boss is fixed outside the sleeve, and the upper end face of the mounting boss is flush with the upper end of the sleeve and the upper plate surface of the baffle; an end cover is provided at the upper end of the sleeve, the end cover comprises an end plate and an annular side wall provided on the lower plate surface of the end plate, the annular side wall is sleeved on the outside of the mounting boss, and a limiting ring is provided at the lower end of the annular side wall which protrudes toward the sleeve and abuts against the lower end face of the mounting boss, a second through hole is provided on the end plate, and the end cover can rotate around the mounting boss to align or misalign the first through hole and the second through hole.
[0007] As a further optimization of the above technical solution, the first through hole is arranged at the center of the baffle, the second through hole is an eccentric hole and the rotation axis of the end cover is located on the plate surface of the baffle.
[0008] As a further optimization of the above technical solution, the end plate and the baffle are concentrically arranged, and the first through hole and the second through hole are both eccentric holes.
[0009] As a further optimization of the above technical solution, the first through hole and the second through hole have the same aperture.
[0010] As a further optimization of the above technical solution, an arc-shaped groove is provided on the lower surface of the mounting boss, and a positioning block that can be inserted into the arc-shaped groove is connected to the limiting ring.
[0011] As a further optimization of the above technical solution, the inner wall of the first through hole and / or the second through hole is provided with a wear-resistant rubber layer.
[0012] As a further optimization of the above technical solution, the drain outlet is connected to a drain pipe, and a gate valve is installed on the drain pipe.
[0013] As a further optimization of the above technical solution, a handle is provided on the periphery of the end cover.
[0014] As a further optimization of the above technical solution, there are two handles which are symmetrically arranged on both sides of the end cover.
[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0016] The utility model rotates the end cover to align the first through hole and the second through hole, so that the drill rod passes through the second through hole and the first through hole and is inserted into the mineral layer to realize the drilling operation. When the water volume and water pressure of the aquifer are relatively large, the drill rod is removed from the borehole, and the end cover is rotated to misalign the first through hole and the second through hole, so that the borehole can be sealed and the water flow outward is restricted. At the same time, a drainage port is provided on the side wall of the sleeve. When the first through hole and the second through hole are misaligned to seal the borehole, the water in the borehole flows out from the drainage port, thereby reducing the resistance of controlling the rotation of the end cover and facilitating the operation of the construction personnel.
[0017] The first through hole is set in the center of the baffle, and the second through hole is an eccentric hole, which can not only achieve the misalignment or alignment of the first through hole and the second through hole, but also make the drill rod passing through the first through hole and the second through hole located on the center line of the sleeve and the casing, ensuring the stability and safety of the drilling operation.
[0018] The end plate and the baffle are concentrically arranged, the first through hole and the second through hole are both eccentric holes, and the mounting boss is concentrically arranged with the sleeve, the baffle and the end cover, so as to facilitate processing of the workpiece.
[0019] When the drill rod is passed through the first through hole and the second through hole and then extended into the mineral layer for drilling operations, the first through hole and the second through hole can constrain the drill rod and limit its tilting. The inner walls of the first through hole and the second through hole are provided with a wear-resistant rubber layer, which can prevent the drill rod from directly contacting and colliding with the side walls of the first through hole and the second through hole, thereby protecting the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 is a side cross-sectional schematic diagram of Example 1;
[0021] Figure 2 is a schematic top view of Example 1;
[0022] Figure 3 This is a bottom view schematic diagram of the portion above the drain outlet of Example 1;
[0023] Figure 4 is a schematic top view of Example 2;
[0024] Figure numerals: 1. sleeve, 2. sleeve, 3. drain pipe, 4. first through hole, 5. baffle, 6. handle, 7. second through hole, 8. end cover, 801. end plate, 802. annular side wall, 803. limiting ring, 804. positioning block, 9. mounting boss, 901. arc-shaped groove, 10. rubber layer, 11. gate valve, 12. mineral layer. DETAILED DESCRIPTION
[0025] The technical solution of the present invention is further elaborated in detail below in conjunction with specific embodiments. Parts not described and disclosed in detail in the following embodiments of the present invention should be understood as existing technologies known or should be known to those skilled in the art.
[0026] Example 1
[0027] like Figure 1 、 2 As shown, this embodiment discloses a bottom plate reinforcement and water-break prevention device, comprising a sleeve 1 and a sleeve 2 fixed to the upper portion of the sleeve 1. The sleeve 1 and sleeve 2 are both cylindrical and fixedly connected by a flange. A drain port is formed on the wall of the sleeve 2, located in the middle and lower portion of the sleeve 2. The drain port is connected to a drain pipe 3, which is equipped with a gate valve 11. A portion of the water in the sleeve 2 can flow out through the drain pipe 3, thereby reducing the pressure of the water flow in the sleeve 2. The gate valve 11 can selectively open or close the drain pipe 3 according to actual conditions.
[0028] A baffle 5 is embedded in the sleeve 2, and the baffle 5 is located above the drain outlet and has a first through hole 4. Specifically, the baffle 5 is transversely arranged at the upper end of the sleeve 2, the first through hole 4 is arranged in the center of the baffle 5, and the plate surface of the baffle 5 is annular.
[0029] A mounting boss 9 is fixed to the outside of the sleeve 2, and the upper end surface of the mounting boss 9 is flush with the upper end of the sleeve 2 and the upper plate surface of the baffle 5; the mounting boss 9 is annular, and its center is located on the plate surface of the baffle 5, that is, the baffle 5 and the mounting boss 9 are eccentrically distributed.
[0030] An end cover 8 is provided at the upper end of the sleeve 2, and the end cover 8 includes an end plate 801 and an annular side wall 802 arranged on the lower plate surface of the end plate 801. The annular side wall 802 is sleeved on the outside of the mounting boss 9. The lower end of the annular side wall 802 is provided with a limiting ring 803 that protrudes toward the sleeve 2 and abuts against the lower end surface of the mounting boss 9. A second through hole 7 is opened on the end plate 801, and the end cover 8 can rotate around the mounting boss 9 to align or misalign the first through hole 4 and the second through hole 7. Specifically, the end plate 801 is concentrically distributed with the mounting boss 9, the annular side wall 802 is vertically arranged, and its outer diameter is the same as the diameter of the end plate 801. The inner diameter of the annular side wall 802 is slightly larger than the outer diameter of the mounting boss 9, so that the annular side wall 802 is sleeved on the outside of the mounting boss 9, and the height of the annular side wall 802 is consistent with the thickness of the mounting boss 9. The limit ring 803 abuts against the lower end face of the mounting boss 9. The second through hole 7 is an eccentric hole opened on the end plate 801. When the end cover 8 is rotated, the rotation axis of the end plate 8 is located on the plate surface of the baffle 5. The position of the second through hole 7 can change in the horizontal plane, and be aligned with the first through hole 4 opened on the baffle 5 to connect the inner cavity of the sleeve 2 and the outside world, or be misaligned to block the sleeve 2.
[0031] The first through hole 4 is set at the center of the baffle 5, and the second through hole 7 is an eccentric hole, which can not only achieve the misalignment or alignment of the first through hole 4 and the second through hole 5, but also make the drill rod passing through the first through hole 4 and the second through hole 7 located on the center line of the sleeve 2 and the casing 1, ensuring the stability and safety of the drilling operation.
[0032] The first through hole 4 and the second through hole 7 have the same aperture. When the drill rod passes through the second through hole 7 and the first through hole 4 and extends into the mineral layer 12 for drilling, the second through hole 7 and the first through hole 4 can constrain the drill rod and prevent it from tilting. The inner wall of the first through hole 4 and / or the second through hole 7 is provided with a wear-resistant rubber layer 10. In this embodiment, the inner wall of the first through hole 4 and the inner wall of the second through hole 7 are both provided with a wear-resistant rubber layer 10. The wear-resistant rubber layer 10 can prevent the drill rod from directly colliding with the side walls of the first through hole 4 and the second through hole 7, providing a certain degree of protection for the drill rod. The wear-resistant rubber layer 10 is detachably mounted on the inner wall of the corresponding through hole and can be replaced in time when the rubber layer 10 is worn. The wear-resistant rubber layer 10 of different thicknesses can also be replaced to accommodate drill rods of different diameters. The wear-resistant rubber layer 10 is detachably connected in the first through hole 4 and the second through hole 7 by bonding. It is understandable that other detachable connection methods in the prior art can also be used.
[0033] like Figure 3As shown, an arcuate groove 901 is formed on the lower surface of the mounting boss 9, and a positioning block 804 is connected to the limiting ring 803 and can be inserted into the arcuate groove 901. The arcuate groove 901 is concentric with the mounting boss 9, and the positioning block 804 can slide in the arcuate groove 901 as the end cover 8 rotates. By controlling the arc length of the arcuate groove 901, it is possible to achieve that when the positioning block 804 slides to one end of the arcuate groove 901, the first through hole 4 and the second through hole 7 are aligned, and when it slides to the other end of the arcuate groove 901, the first through hole 4 and the second through hole 7 are misaligned.
[0034] A handle 6 is provided on the periphery of the end cover 8 . There are multiple handles 6 and they are evenly spaced along the periphery of the end cover 8 . In this embodiment, there are two handles 6 symmetrically arranged on both sides of the end cover 8 .
[0035] In order to further improve the sealing effect of the sleeve 2 when the first through hole 4 and the second through hole 7 are misaligned, a sealing ring is installed between the inner wall of the end cover 8 and the mounting boss 9. The sealing ring is a commercially available product and will not be described in detail here.
[0036] When the utility model is in use, first, a shallow hole is drilled in the target mineral layer 12, and the casing 1 is inserted into the mineral layer 12, with the sleeve 2 located above the mineral layer 12, the first through hole 4 and the second through hole 7 are kept aligned, the gate valve 11 is opened, and the drill rod is passed through the second through hole 7 and the first through hole 4 in sequence before drilling. When water from the water-rich layer rises along the drill rod, the drill rod is removed, and the end cover 8 is rotated to offset the second through hole 7 and the first through hole 4 to achieve blocking of the sleeve 2. During this process, a portion of the water flows out from the drain pipe 3, reducing the water pressure in the sleeve 2 and facilitating blocking of the sleeve 2. After the sleeve 2 is blocked, the water in the borehole is discharged from the drain pipe 3 or the gate valve 11 of the drain pipe 3 is closed according to the actual working conditions.
[0037] Example 2
[0038] like Figure 4 As shown, this embodiment has the same overall structure as Example 1, differing in that, in this embodiment, the end plate 801 and baffle 5 are concentrically arranged, and the first through-hole 4 and the second through-hole 7 are both eccentric. The distance between the first through-hole 4 and the center of the baffle 5 is the same as the distance between the second through-hole 7 and the center of the end plate 801. By rotating the end cap 8, the first through-hole 4 and the second through-hole 7 can be aligned or offset, thereby connecting or blocking the sleeve 2 from the outside world. In this embodiment, the mounting boss 9 is concentrically arranged with the sleeve 2, baffle 5, and end cap 8, facilitating workpiece processing.
[0039] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A bottom plate reinforcement drilling anti-water collapse device, comprising a casing (1) and a sleeve (2) fixed on the upper part of the casing (1), characterized in that: A drainage port is provided on the wall of the sleeve (2); A baffle (5) is embedded in the sleeve (2), the baffle (5) is located above the drain outlet and a first through hole (4) is formed on the baffle (5); A mounting boss (9) is fixed outside the sleeve (2), and the upper end surface of the mounting boss (9) is flush with the upper end of the sleeve (2) and the upper plate surface of the baffle (5); An end cover (8) is provided at the upper end of the sleeve (2), and the end cover (8) includes an end plate (801) and an annular side wall (802) provided on the lower plate surface of the end plate (801), the annular side wall (802) is sleeved on the outside of the mounting boss (9), and a limiting ring (803) is provided at the lower end of the annular side wall (802) that protrudes toward the sleeve (2) and abuts against the lower end surface of the mounting boss (9), a second through hole (7) is provided on the end plate (801), and the end cover (8) can rotate around the mounting boss (9) to align or misalign the first through hole (4) and the second through hole (7).
2. A bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: The first through hole (4) is arranged at the center of the baffle (5), the second through hole (7) is an eccentric hole, and the rotation axis of the end cover (8) is located on the plate surface of the baffle (5).
3. The bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: The end plate (801) and the baffle (5) are concentrically arranged, and the first through hole (4) and the second through hole (7) are both eccentric holes.
4. The bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: The first through hole (4) and the second through hole (7) have the same aperture.
5. The bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: An arc-shaped groove (901) is provided on the lower surface of the mounting boss (9), and a positioning block (804) capable of being inserted into the arc-shaped groove (901) is connected to the limiting ring (803).
6. The bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: The inner wall of the first through hole (4) and / or the second through hole (7) is provided with a wear-resistant rubber layer (10).
7. The bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: The drain outlet is connected to a drain pipe (3), and a gate valve (11) is installed on the drain pipe (3).
8. The bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: A handle (6) is provided on the outer periphery of the end cover (8).
9. The bottom plate reinforcement drilling and water-proofing device according to claim 1, characterized in that: There are two handles (6) symmetrically arranged on both sides of the end cover (8).